# -*- Mode: Python -*- vi:si:et:sw=4:sts=4:ts=4:syntax=python
import shutil

class Recipe(recipe.Recipe):
    name = 'bison'
    version = '3.0.4'
    licenses = [License.GPLv2Plus]
    stype = SourceType.TARBALL
    url = 'gnu://'
    tarball_checksum = 'a72428c7917bdf9fa93cb8181c971b6e22834125848cf1d03ce10b1bb0716fe1'
    deps = ['automake', 'autoconf', 'gettext-tools']

    patches = ['bison/0001-Fix-build-invalid-instruction-on-macOS-10.3.patch']

    files_bins = ['bison', 'yacc']

    async def extract(self):
        if os.path.exists(self.build_dir):
            shutil.rmtree(self.build_dir)
        await super(recipe.Recipe, self).extract()
